Clamping device



June 14, 1921. 1,632,108

L. P. ARMSTRONG CLAMPING DEVICE Filed March 4. 1926 FIGURE .1

14 FIGURE 2 FIGURE :5

FIGURE 4- ATTORNEY Patented June 14, 1927.

LYMAN r. nizwsszmoim, or SAN JOSE, oamronnm.

cmxrme DEVICE.

Apphcationi filed March 4, 192a. Serial No. 92,253.

It is the object of the invention to provide a simple, durable, strongand effective clamping device for gripping the edges of bedding toprevent it being kicked loose,

t and to permit the use of bedding of shorter lengths.

In the drawing.-

Figure 1 is a front elevation of a portion of the foot structure of abed embodying i my invention.

Figure 2 is an end elevation of the same.

Figure 3 is a plan view of a portion of the same.

Referring more particularly to the draw- 7 l ing, I show at 1-1 the twoside bars of the bed frame, and at 2 the connecting cross bar at thefoot of the frame.

Since the two ends of the foot structure are identical in form andconstruction the following detailed description of one end appliesequally as well to the other end.

Passing upwardly through one bar 1 and the end of the bar 2 mountedthereon is a rod 3 having a lateral offset bend therein at 4 just abovethe bar 2.

At 5 I show the lower jaw of the device having a groove 6 formed in itsend to slidably engage the vertical rod 3, the upper edge of this barbeing bevelled as At 8 is the central jaw of the device having a groove9 formed in its end to slidably engage the rod 3.

At 10 I show the top jaw of the device having a groove formed in its endas at 11 to slidably engage the rod 3 and bevelled at its lower edge asat 12.

A slot 13 is formed in the end of jaw 1.0 near its lower edge as shown,and in this slot is inserted a metal element 14 having an orifice 15formed therein to slidably engage the rod 3 and having an upturned andlaterally projecting part 16 provided with an orifice 17 to which a cord18 may be thereby causing the element 14 to bind upon the rods 3-3 andsecurely hold the several parts in position.

To release the jaws it is only necessary'to pull the cord 18 or tip theelement- 14 upwardly whereby to permit it to slide freely on the rods33. The jaw elements may now be moved upwardly or downwardly as desireduntil the elements 14 are released to again bind on the rods 3+3.

By forming the offsets 4 in rods 3 they may be turned outwardly wardlyto accommodate shorter jaw bars, or shorter bedding.

as shown or inr In Figure 4 a fastening device is shown wherein a plate19 is mounted on a screw 20 inserted in aw 10 as shown, the plate havingan orifice 21 therein through which the rod 3 passes. In this, as in thedevice above de scribed, the plate will slide. freely along the rod whenthe jaw 10 is pressed clownwardly but binds on the said rod when thepressure is upward.

. It should also be pointed out that in the embodiment shown in Figure 4no bed frame is used, as hereinbefore described, but the rod 3 ismounted in a member 22 which itself functions as the lower jaw of thedevice, for use in hammocks and easy chairs.

It is to be understood, of course, that while I have herein shown anddescribed but one specific embodiment of my invention, changes in form,construction and method of operation of the device may be made withinthe scope of the appended claims.

I claim 1. In a structure of the character described, a jaw member, apair of spaced parallel rods rising therefrom, a second jaw memberhaving a groove formed in each end thereof to slidably engage theadjacent rod, and havin a slot formed therein to intersect each 0 saidgrooves, a metal plate loosely mounted in each slot and provided with anorifice through which the adjacent rod passes.

2. A structure of the character described comprising a frame, a pair ofspaced parallel rods mounted thereon, parallelly arranged jaw membersslidably mounted on said rods, the jaw member remote from said framehaving a slot formed in each end thereof, a metal plate loosely mountedin each slot and provided with an orifice through which the adjacent rodpasses, and means for tilting the plate 111 the slot 3. A structure ofthe character described surface of each slot being formed at rightcomprising a supporting member, a pair of angles to the groove itintersects and the 10 spaced parallel rods rising therefrom, a jaw lowersurface being formed at an angle member having a groove formed in eachend thereto, and a metal plate loosely mounted thereof to slidablyengagesaid rods in paralin each slot and provided with an orifice lel relationto said supporting member and through which the adjacent rod passes.

having a slot formed in each end thereof and intersecting said grooves,the upper LYMAN P. ARMSTRONG.

